Influence of Tooth Profile Modification on Helical Gear Durability

2002 ◽  
Vol 124 (3) ◽  
pp. 501-510 ◽  
Author(s):  
Parag Wagaj ◽  
Ahmet Kahraman
Keyword(s):  
Three Dimensional ◽  
Helical Gear ◽  
Tooth Profile ◽  
Gear Pair ◽  
Profile Modification ◽  
Mechanics Model ◽  
Tooth Profile Modification ◽  
Bending Stresses ◽  
Helical Gear Pair ◽  
Maximum Stresses

A nonlinear finite element contact mechanics model of a helical gear pair was used to study the effect of intentional tooth profile modifications on durability of helical gear pairs. Both two-dimensional (2D) and three-dimensional (3D) modifications were considered. A detailed parametric study was performed to quantify the changes in the contact and bending stresses as a function of tooth profile modification parameters as compared to an unmodified gear pair baseline. The combined influence of modification parameters and torque transmitted on the maximum stresses is described. Results indicate that both bending and contact stresses of a helical gear pair are increased significantly when 2D modifications are applied, potentially causing an underestimation of the actual stress values when the modifications are not included in stress calculations. When properly selected, 3D modifications cause significantly less stress increases.

A distributed dynamic mesh model of a helical gear pair with tooth profile errors

2018 ◽  
Vol 25 (2) ◽  
pp. 287-303 ◽  
Author(s):  
Qi-bin Wang ◽  
Hong-bo Ma ◽  
Xian-guang Kong ◽  
Yi-min Zhang
Keyword(s):  
Helical Gear ◽  
Tooth Profile ◽  
Dynamic Mesh ◽  
Gear Pair ◽  
Mesh Model ◽  
Profile Errors ◽  
Tooth Profile Errors ◽  
Helical Gear Pair

Influence Analysis of Machining Errors on Bearing Capability of Internal Gear Pair

2011 ◽  
Vol 299-300 ◽  
pp. 1142-1145
Author(s):  
Kai Huang ◽  
Yan Dong Zhang
Keyword(s):  
Tooth Profile ◽  
Gear Pair ◽  
Influence Analysis ◽  
Profile Modification ◽  
Pair Model ◽  
Tooth Profile Modification ◽  
Machining Errors ◽  
Internal Gear

The gear pair model with machining errors is constructed based on the software such as Pro/E and ANSYS, and in this basis, the influence analysis about the machining errors on the bearing capability is carried out. The analysis results show that the said influence varies with the increase of load, and however, the tooth profile modification would be more important compared with the machining errors.

scholarly journals Time-varying dynamic analysis for a helical gear pair system with three-dimensional motion due to bearing deformation

2020 ◽  
Vol 12 (5) ◽  
pp. 168781402091812
Author(s):  
Ying-Chung Chen
Keyword(s):  
Three Dimensional ◽  
Helix Angle ◽  
Helical Gear ◽  
Dynamic Responses ◽  
Time Varying ◽  
Gear Pair ◽  
Contact Ratio ◽  
Transverse Pressure ◽  
Helical Gear Pair ◽  
Center Distance

The dynamic response of a helical gear pair system is investigated. A new dynamic model for a helical gear pair system, considering three-dimensional motion due to bearing deformation, is proposed. The proposed model considers the helix angle, gear pair center distance, transverse pressure angle, and the contact ratio as time-dependent variables, which are considered as constants in other models. In fact, three-dimensional motion due to bearing deformation will lead to the changes in a series of dynamic responses. The system equations of motion were obtained by applying Lagrange’s equation and the dynamic responses are computed by the fourth-order Runge–Kutta method. The time-varying dynamic displacements, helix angle, gear pair center distance, transverse pressure angle, and the contact ratio are investigated with bearing deformation, different radial bear stiffness, different axial bear stiffness, and gear eccentricity. The results show that, due to the time-varying effect, this new helical gear pair model provides more accurate dynamic responses than those previous models which are considered as constant. In the future, this study can provide some useful information for the time-varying dynamic design of a helical gear pair system.

scholarly journals 115 Tooth Profile Modification and Transmission Error of Spur Gear Pair

2000 ◽  
Vol 2000.37 (0) ◽  
pp. 29-30
Author(s):  
Makoto TANAKA ◽  
Shigeo YANABE ◽  
Takaki KANOU ◽  
Koreaki ICHINO
Keyword(s):  
Transmission Error ◽  
Spur Gear ◽  
Tooth Profile ◽  
Gear Pair ◽  
Profile Modification ◽  
Tooth Profile Modification
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